About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of Xylan
In this study, we highlighted how the catalytic effect of alkali metals on xylan pyrolysis is strongly affected by the adopted doping approach. Thermogravimetric and pyrolysis tests, up to 973 K and at a heating rate of 7 K/min, were conducted on a set of potassium- or sodium-doped xylan samples con...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/9392571 |
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| author | Valentina Gargiulo Paola Giudicianni Michela Alfè Raffaele Ragucci |
| author_facet | Valentina Gargiulo Paola Giudicianni Michela Alfè Raffaele Ragucci |
| author_sort | Valentina Gargiulo |
| collection | DOAJ |
| description | In this study, we highlighted how the catalytic effect of alkali metals on xylan pyrolysis is strongly affected by the adopted doping approach. Thermogravimetric and pyrolysis tests, up to 973 K and at a heating rate of 7 K/min, were conducted on a set of potassium- or sodium-doped xylan samples containing controlled amounts of KCl or NaCl introduced, starting from a demineralized xylan sample, through a conventional wet impregnation approach. Pyrolysis product yields from xylan-doped samples were compared with those related to the demineralized xylan sample. The performances of the doping procedure were assessed through a comparison with the data collected on raw xylan and a xylan sample doped with potassium ions by a cationic exchange approach. The results showed that the introduction of potassium ions by wet impregnation using a chloride salt negligibly affected the pyrolytic behaviour of the demineralized sample and indicated that the doping approach based on wet impregnation using chloride salts is not appropriate for the study of the effect of alkali metals on the pyrolysis of polysaccharides bearing acidic functional groups as xylan. |
| format | Article |
| id | doaj-art-da90efd3c1684b1bb0917778177a9e93 |
| institution | OA Journals |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-da90efd3c1684b1bb0917778177a9e932025-08-20T02:21:20ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/93925719392571About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of XylanValentina Gargiulo0Paola Giudicianni1Michela Alfè2Raffaele Ragucci3Institute for Research on Combustion (IRC-CNR), P.le V. Tecchio 80, 80125 Naples, ItalyInstitute for Research on Combustion (IRC-CNR), P.le V. Tecchio 80, 80125 Naples, ItalyInstitute for Research on Combustion (IRC-CNR), P.le V. Tecchio 80, 80125 Naples, ItalyInstitute for Research on Combustion (IRC-CNR), P.le V. Tecchio 80, 80125 Naples, ItalyIn this study, we highlighted how the catalytic effect of alkali metals on xylan pyrolysis is strongly affected by the adopted doping approach. Thermogravimetric and pyrolysis tests, up to 973 K and at a heating rate of 7 K/min, were conducted on a set of potassium- or sodium-doped xylan samples containing controlled amounts of KCl or NaCl introduced, starting from a demineralized xylan sample, through a conventional wet impregnation approach. Pyrolysis product yields from xylan-doped samples were compared with those related to the demineralized xylan sample. The performances of the doping procedure were assessed through a comparison with the data collected on raw xylan and a xylan sample doped with potassium ions by a cationic exchange approach. The results showed that the introduction of potassium ions by wet impregnation using a chloride salt negligibly affected the pyrolytic behaviour of the demineralized sample and indicated that the doping approach based on wet impregnation using chloride salts is not appropriate for the study of the effect of alkali metals on the pyrolysis of polysaccharides bearing acidic functional groups as xylan.http://dx.doi.org/10.1155/2019/9392571 |
| spellingShingle | Valentina Gargiulo Paola Giudicianni Michela Alfè Raffaele Ragucci About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of Xylan Journal of Chemistry |
| title | About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of Xylan |
| title_full | About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of Xylan |
| title_fullStr | About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of Xylan |
| title_full_unstemmed | About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of Xylan |
| title_short | About the Influence of Doping Approach on the Alkali Metal Catalyzed Slow Pyrolysis of Xylan |
| title_sort | about the influence of doping approach on the alkali metal catalyzed slow pyrolysis of xylan |
| url | http://dx.doi.org/10.1155/2019/9392571 |
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